Trickling filter

Hello there! Let me explain to you what a trickling filter is!

A trickling filter is like a big bathtub or a swimming pool, but instead of water, it is filled with small pieces of rocks or other materials that are used specifically to clean dirty water. When dirty water comes into the trickling filter it gets sprayed on top of the rocks, then it slowly trickles down through them. These little rocks have tiny naturally-occurring living things on them called bacteria that eat up all the things in the water that make it dirty.

These bacteria eat things like poop, pee, and other junk that people and animals create that gets flushed down the toilet or washes off the road. They also eat other things like soap and fertilizer, which can be bad for the environment if they are not properly cleaned. As the water trickles down through the rocks, the bacteria clean it up so that it can be released back into nature.

This is a very important process because we need clean water to drink and to swim in, and we also need to make sure that we are not polluting the planet. Trickling filters help us to do both of these things.

So, in summary, a trickling filter is a special kind of bathtub or swimming pool that helps to clean dirty water by using tiny rocks with bacteria on them to eat up all the junk in the water.